Attachment for handsaws



(No ModeL) N. W. RASNIGK.

ATTACHMENT FOR HANDSAWS. No. 399,695. Patented Marf19. 1889.

,GL WW W W- 11 M NIMUM w -W H NOAH WEBSTER RASNIGK, OF STRATTON,VIRGINIA.

ATTACHMENT FOR HANDSAWS.

SPECIFICATION forming part of Letters Patent No. 399,695, dated March19, 1889.

Application filed October 3, 1888.

T0 'aZZ whom it may concern.-

Be it known that I, NOAH IVEBSTER RAS- NICK, a citizen of the UnitedStates, residing at Stratton, in the county of Dickenson and State ofVirginia, have invented certain new and useful Improvements inAttachments for Handsaws; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

This invention relates to handsaws; and it has for its object to providea simple and efficient and at the same time inexpensive de vice for usein connection with this class of tools, whereby the blade of the sawwill be securely held in place between suitably-arranged metallic barsextended longitudinally upon each side of the blade, and thus retainedagainst possible springing or warping.

A further object of the invention is to provide a means by which theblade of the saw may be vertically adjusted between said bars, so as tolimit the depth of the cut, as may be desired.

To these ends, and to such others as the invention may pertain, the sameconsists in the peculiar combinations and in the novel construction,arrangement, and adaptation of parts, all as more fully hereinafterdescribed, shown in the drawings, and then specifically defined in theappended claims.

The invention is clearly illustrated in the accompanying drawings, whichform apart of this specification, and in which Figure 1 is a perspectiveview of a hand.- saw embodying my invention. Fig. 2 is a top plan of thesame. Fig. 3 is a vertical longitudinal section, and Fig. 4 is amodification.

Reference now being had to the details of the drawings by letter, Adesignates the handle of the saw, which may be of any suitable andwell-known construction.

B is a bar of metal securely attached. at its base to the handle, asshown, the flanged portion a being fitted within a vertical slot or recess formed in the handle and secured there- Serial No. 287,061. (Nomodel.)

in by means of rivets I), passed through the handle.

0 is the saw-blade, which is substantially rectangular in form, its endsbeing at right angles to the direction of the cutting-edge and 5 5provided with a series of notches, as shown at c. The bar B is providedwith a vertical slot, B which extends from the point at which the bar issecured to the handle to a point near the opposite end of the bar, andthe portion of the bar intervening between the end of the slot and theextreme end of the bar is cut away, so as to form the neck D, which isscrew-threaded and provided with a cap or nut, D for a purpose whichwill presently appear. The length of the saw-blade is such as to permitof its free vertical movement within the slot B when the cap D isremoved. The serrations or notches 0, formed upon the end of the bladeadjacent to the handle, are designed to engage lugs or projections d,provided within the inner end of the slot, and

the end of the cap D adjacent to the sawblade is provided with anannular projection or rim, g, which is adapted to engage the serrationsor notches 0, formed at the outer end of the blade.

The operation of the device is as follows: The screw-cap I) having beenremoved, the blade 0 is placed within the slot B and the cap is againreplaced upon the neck D. The projection described upon the inner faceof the cap will engage the serrations or notches upon the adjacent endof the saw-blade, and the blade will be forced toward the handle untilthe serrations upon the opposite end of the blade engage the lugs d, andthe same is held securely in its adjusted position. It will be readilyunderstood that the blade may be quickly and securely adjusted to anydesired position within the slot by simply loosening the cap.

The construction above described is capable of certain modificationswithout departing from the spirit of my invention. Such a modification Ihave shown in Fig. 4 of the drawings. In this construction I havesubstituted for the lugs cl within the inner end of the slot and for therim g upon the cap the bars J, provided with notches corresponding I00with the notches upon the ends of the sawblade. These bars may bearranged vertically at either end of the saw-blade, as shown, and permitof a greater field of vertical adjustment than would otherwise bepossible.

Having thus described my invention, what I claim to be new is i 1. Theherein-described handsaw, comprisin g in combination a handle, avertically-slotted bar secured at one of its ends to the handle andprovided at its opposite end with a screwthreaded neck, a screw-threadedcap to e11- gage said neck, and a saw-blade fitted within the verticalslot and adapted to be retained therein by the cap, substantially asdescribed.

2. In a device for the purpose described, a handle, a vertically-slottedbar having one of its ends secured to the handle and its opposite endprovided with an adjustable cap or nut, the inner end of which isprovided with an annular extension or collar, as described, a saw-bladehaving its inner end provided with a series of notches to engage lugsprovided within the end of the vertical slot adjacent to the handle, andits opposite end furnished with similar notches to engage the collarupon the cap, substantially as and for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

NOAH WEBSTER RASNIOK. Witnesses:

JOSHUA CLARENCE CoUNrs, JosEPH H. RAsNIoK.

